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Evaluation of compressed video-images for emergency telemedicine work with trauma patients

DC Field Value Language
dc.contributor.author박인철-
dc.contributor.author유선국-
dc.date.accessioned2015-07-14T16:35:40Z-
dc.date.available2015-07-14T16:35:40Z-
dc.date.issued2004-
dc.identifier.issn1357-633X-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/111204-
dc.description.abstractVideo-encoders in telemedicine systems need to adjust their coding methods for operation on heterogeneous networks on which bandwidth fluctuates. We evaluated MPEG-4 compressed video-pictures of three trauma patients. We compared the original video-frames with compressed video-frames in terms of the peak signal-to-noise ratio (PSNR). In a qualitative evaluation, three emergency specialists scored the quality of the video-images blind, on a five-point scale (1= bad to 5 = excellent). The PSNR increased as the bit rate increased from 0.2 to 6 Mbit/s. When the bit rate was fixed, in other words at a given network bandwidth, a higher PSNR was obtained at the expense of spatial resolution and frame rate. The video quality was highly affected by the amount of camera shake. Emergency telemedicine systems require a high bit rate, high spatial resolution and a high frame rate to achieve optimum video quality. However, if the bandwidth is limited (i.e. the bit rate is fixed), temporal resolution becomes more important than spatial resolution.-
dc.description.statementOfResponsibilityopen-
dc.format.extent64~66-
dc.relation.isPartOfJOURNAL OF TELEMEDICINE AND TELECARE-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/2.0/kr/-
dc.subject.MESHData Compression-
dc.subject.MESHEmergencies-
dc.subject.MESHHumans-
dc.subject.MESHRemote Consultation/methods-
dc.subject.MESHRemote Consultation/standards*-
dc.subject.MESHSingle-Blind Method-
dc.subject.MESHVideotape Recording/methods-
dc.subject.MESHVideotape Recording/standards*-
dc.subject.MESHWounds and Injuries/diagnosis*-
dc.titleEvaluation of compressed video-images for emergency telemedicine work with trauma patients-
dc.typeArticle-
dc.contributor.collegeCollege of Medicine (의과대학)-
dc.contributor.departmentDept. of Medical Engineering (의학공학)-
dc.contributor.googleauthorDong-Keun Kim-
dc.contributor.googleauthorSun K Yoo-
dc.contributor.googleauthorSeung H Kim-
dc.contributor.googleauthorYoo S Youn-
dc.contributor.googleauthorIn-Cheol Park-
dc.contributor.googleauthorHo-Hyun Kang-
dc.identifier.doi10.1258/1357633042614267-
dc.admin.authorfalse-
dc.admin.mappingfalse-
dc.contributor.localIdA01628-
dc.contributor.localIdA02471-
dc.relation.journalcodeJ01764-
dc.identifier.eissn1758-1109-
dc.identifier.pmid15603613-
dc.identifier.urlhttp://jtt.sagepub.com/content/10/suppl_1/64.long-
dc.contributor.alternativeNamePark, In Cheol-
dc.contributor.alternativeNameYoo, Sun Kook-
dc.contributor.affiliatedAuthorPark, In Cheol-
dc.contributor.affiliatedAuthorYoo, Sun Kook-
dc.rights.accessRightsnot free-
dc.citation.volume10-
dc.citation.numberSuppl1-
dc.citation.startPage64-
dc.citation.endPage66-
dc.identifier.bibliographicCitationJOURNAL OF TELEMEDICINE AND TELECARE, Vol.10(Suppl1) : 64-66, 2004-
dc.identifier.rimsid36203-
dc.type.rimsART-
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Emergency Medicine (응급의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Medical Engineering (의학공학교실) > 1. Journal Papers

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